It's kind of funny how much headache and how little savings these Ryzen boards ended up bringing us in the end. I know in Europe power costs are high, so perhaps this comparison won't mean much, but I have a supplier here in the US that can give us bulk dual Xeon scalable or AMD Epyc servers, with chassis, proper rail kits, heatsinks, the processors, power supply, fans, everything other than memory and disks, for about $70 per unit. More powerful, enterprise-grade, with IPMI. And the memory for those are much cheaper since it's not UDIMM. Half the price if you're comparing to UDIMM ECC.
I know I'm going to have to eventually buy more heatsinks for these and it hurts paying more for those than the boards.
CPU Cooler I got from PIOPartsLap the GELID 1U cooler for 3 EUR / Piece
.
I'd be interested in those AMD EPYC Servers
. Heck even just a Motherboard + CPU from China was 500 EUR !!! But 1U EPYC? I'd prefer 2U.
I feel like your total must be much worse than mine, but again, you can point to your electric bill and it makes sense. Over here I can't even do that, industrial electricity rate is like $0.06-0.09/kW here.
Not in Summer with my Solar System. But in Winter, yeah ....
It's an awesome perk of the 5500. It's Cezanne, which is technically not supported, but it's technically not really Cezanne (it is, they just disabled integrated graphics.) So it technically works, just with extra steps. I've already looked through the BIOS, they don't define anything for Cezanne and my guess at this point is it has to do with the timing for the AST2510 coming up conflicting with CSM. I'm about 15 custom BIOS versions in right now just to avoid having to plug in a GPU for every board, because even if you disable CSM, it loads it as default on CPU swap. Even if you disable CSM in the actual BIOS flash, it loads it as default on boot.
I know it has to be something deep into the setup settings on the BIOS, where it takes the flash and then runs some scripts on top of it on first boot, but those are harder to locate.
Pretty sure, on a related note, that the ECC Support, with my Script, only started working once you enable UEFI Boot. Well you technically need to do that anyways, otherwise you cannot run the EFI Shell Script.
We are starting to have some doubts about ECC Support, since
@chlastakov tested with an AMD Ryzen 3 3100 with ECC Memory and it did NOT boot at all. So between conflicting Informations online (all AMD Ryzen CPUs and all AMD Ryzen PRO-APUs support ECC ... except the Ryzen non-PRO APUs that have been turned into a CPU
) and erranous Reports e.g. on TechPowerUp, we are not sure what we can trust to be honest.
The "Feeling" is that non-X CPUs (at least some of them) might NOT support ECC.
Look at how they look, the part where you'd screw it in is flared out (I don't know the right word for it.) And the rails its supposed to go with also does that. It's a "bump" out toward the outer walls of your cabinet. This is technically better in some ways, like you don't have to worry as much about the clearance on your nuts/bolts. But it means for the "best" results you also want to create a bump on your hardware store steel L bars. It'll still work without it, just need longer bolts.
None of the above answered your question, the part I'm talking about is that it actually "hugs" the bar. Which is good, more reinforcement, but bad because now you have to be more precise on the size of your bar. you could also just have it be taller and it'll still work, but you lose that benefit and also lose some clearance on the sides, not on the top/bottom.
Couldnt' I just use a straight Steel Bar of e.g. 5mm Thickness and some Countersunk Screws instead, so that I don't lose those 2mm of alignment for the next Server ?
Basically screw then in as Regular Rails after they have been attached to that Supermicro Bracket with Countersunk Screws ?
Look this up, or actually don't because it could end up not working at all, but it's cheap enough plus you can use it for installing a split AC system if you ever get one of those. Actually the more I think about it the more variables there are than I originally accounted for plus it really shouldn't work... but it might.
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What you really need is a hand operated steel punch (if you're strong) or a hydraulic punch but you're not trying to open a factory in your home. Except not really a punch, you'd get a punch but add a dimple/flare tool to it. I have no idea why I'm going through such lengths explaining this when I could just show you a photo of the rail.
View attachment 43475
I actually maybe have that Tool. I used to fit clinch Nuts in some Copper Bars, but the Device is so strong (1 Ton of claimed Pressure) and you need to apply so much Force that you end up BENDING whatever you are trying to work on. Surely Copper bends much easier than Steel but still ...
I do actually have a cheap solution to do this "properly" because I had to do it years ago, I just need to remember what it was and I'll spill the beans.
Thanks
Yeah, don't. Well you technically did modify the BIOS for the ECC support with your EFI file, right? But yeah this is a lot different (probably.) I'm staring at hex files all day.
Yeah for ECC only it seems like an easier Solution. But if I lose the BIOS Settings due to the CMOS Battery being Dead and the System disconnected from AC Power, then I'll lose ECC Support too. So I need a Systemd Script at boot to check whether ECC was enabled.
